Heat - P3 Flashcards
1
Q
What is internal energy?
A
The amount of energy in an object’s internal store is the sum of the kinetic and chemical stores of the object’s particles.
2
Q
What is the equation for thermal (internal) energy?
A
ΔE=m×c×ΔT (SHC = Specifc Heat Capacity)
Thermal energy = mass x SHC x temperature change
3
Q
What is latent heat?
A
Latent heat is the energy that is transferred to a substance without the substance’s temperature changing. This happens when a substance is changing state.
4
Q
How do you calculate the energy for a change in state?
A
E = m × l Energy = mass x specific latent heat
